Testing is crucial in building reliable software. It helps you catch issues early, ensures your application works as expected, and gives you confidence as you make changes. In this guide, we’ll explore two fundamental types of testing in a Spring Boot app: unit tests and integration tests. We will also walk through the essentials, including…
If you’re diving into the world of Java development, you might have come across the Spring Framework. Think of Spring as a helpful toolbox that makes building Java applications easier and more organized. One of the coolest features of Spring is its use of annotations. So, what exactly are annotations? They are like special notes…
What is Maven? Maven is a tool that helps developers manage their projects, mainly for Java applications. It’s primarily a build and project management tool for Java, but it can also work with other JVM-based languages like Kotlin and Scala. Maven makes it easy to download the libraries your project needs, organize your project files,…
When working with databases in Spring applications, it is essential to ensure operations are consistent and reliable. That is where transactions come in. This post explores what transactions are, how they work in Spring, and how to use the @Transactional annotation to manage transactions effectively. Whether you’re using core Spring or Spring Boot, transaction management…
When building a Spring Boot app, connecting to a database is often essential. JdbcTemplate and Spring Data are effective options for managing database interactions. JdbcTemplate is a lower-level tool for relational databases, allowing you to write SQL queries directly in Java and requiring a DataSource that Spring Boot can configure automatically. Spring Data simplifies database…
REST, or Representational State Transfer, is a way for applications to communicate over the internet using standard HTTP methods like GET, POST, PUT, and DELETE. It allows clients, such as web or mobile apps, and backend services to interact with server resources, which typically consist of data. Each request contains all the information needed for…
In today’s digital world, web applications play a vital role in how we interact online. This post explores how to create a basic web application using Spring Boot and Spring MVC, helping you understand the architecture, HTTP request handling, and the advantages Spring offers for building robust applications. What is a Web App? A web…
Aspect-Oriented Programming (AOP) is a useful approach in software development that helps manage common tasks, known as cross-cutting concerns, that appear across different parts of an application. Cross-cutting concerns include things like logging, security, error handling, and transaction management. When these tasks get mixed in with the main business logic, they can make your code…
When working with Spring, you’ll come across different ways to manage the lifecycle of beans. Simply put, a bean is an object that Spring manages for you, and its scope controls how long that object exists and how many instances of it get created while your application is running. In other words, the bean scope…
In software development, using interfaces is a powerful way to define how different parts of your application work together. This guide will explain how to use interfaces to decouple implementations, along with the roles of services, repositories, controllers, and models in the Spring framework. Decoupling means keeping parts of the application separate so they don’t…